Improved limit on the directly measured antiproton lifetime. Sellner, S., Besirli, M., Bohman, M., Borchert, M., J., Harrington, J., Higuchi, T., Mooser, A., Nagahama, H., Schneider, G., Smorra, C., Tanaka, T., Blaum, K., Matsuda, Y., Ospelkaus, C., Quint, W., Walz, J., Yamazaki, Y., & Ulmer, S. New Journal of Physics, 19(8):083023, IOP Publishing, 8, 2017.
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Paper Website abstract bibtex Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime. From our measurements we extract a storage time of 3.15 × 10 8 equivalent antiproton-seconds, resulting in a lower lifetime limit of tp > 10.2 a with a confidence level of 68%. This result improves the limit on charge-parity-time violation in antiproton decays based on direct observation by a factor of 7.
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abstract = {Continuous monitoring of a cloud of antiprotons stored in a Penning trap for 405 days enables us to set an improved limit on the directly measured antiproton lifetime. From our measurements we extract a storage time of 3.15 × 10 8 equivalent antiproton-seconds, resulting in a lower lifetime limit of tp > 10.2 a with a confidence level of 68%. This result improves the limit on charge-parity-time violation in antiproton decays based on direct observation by a factor of 7.},
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author = {Sellner, S. and Besirli, M. and Bohman, M. and Borchert, M.J. J and Harrington, J. and Higuchi, T. and Mooser, A. and Nagahama, H. and Schneider, G. and Smorra, C. and Tanaka, T. and Blaum, K. and Matsuda, Y. and Ospelkaus, C. and Quint, W. and Walz, J. and Yamazaki, Y. and Ulmer, S.},
journal = {New Journal of Physics},
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